Rationale: Nutrition and lifestyle interventions are currently not implemented in usual clinical care of PAH-patients. Mainly because there is little known on the relation between pathology, nutrition and lifestyle. Patients who suffer from Pulmonary Arterial Hypertension feel insecure about their nutrition and lifestyle. The investigators hypothesize that an intervention on nutrition and lifestyle can improve the patients' quality of life. Objective: To explore the effect of a nutrition and lifestyle intervention on quality of life for patients suffering from PAH. Study design: Investigator initiated intervention study with control group. Study population: investigators aim to include 70 patients (18 - 80 years) with idiopathic, hereditable or drug related PAH, who have been stable for at least three months and are self-sufficient and/or have a family who's willing to participate in the lifestyle changes. Intervention (if applicable): Nutritional status, - education, - intervention and - compliance. Main study parameters/endpoints: This is an intervention study in which the investigators will asses the effect of a nutrition and lifestyle intervention on quality of life measured by SF-36 overall outcome with a significant difference of 6.35. Nature and extent of the burden and risks associated with participation, benefit and group relatedness: The burden for the patient exists of 12 extra visits to the hospital and contact moments, over a period of 11 months, as well compliance to the diet and lifestyle. There is minimal risk in participation.
Baseline nutritional assessment Nutritional education: 8 online lessons containing information about nutrition, lifestyle and general health with complementary tips regarding PH. All participants recieve workbook with assignments. Nutritional intervention: Group A: MedDASH diet (55% carbohydrates, 25% amino acids, 20% fatty acids) Group B: MedDASHfat diet (10% carbohydrates, 25% amino acids, 65% fatty acids) Control group: no diet. Follow-up: Patients in intervention arm followed for a period of 6 months to assess compliance.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
40
8 lessons about nutrition and lifestyle
Diet A: MedDASH diet (55% carbohydrates, 25% amino acids, 20% fatty acids) Diet B: MedDASHfat diet (10% carbohydrates, 25% amino acids, 65% fatty acids)
VU medical center
Amsterdam, North Holland, Netherlands
Change in quality of life
To asses quality of life, the SF-36 questionnaire is used.
Time frame: Baseline (week 0), after nutritional education (week 10), after nutritional intervention (week 24), after follow up (week 48)
Change in nutritional intake
To asses dietary intake a food frequency questionnaire is used (HELIUS)
Time frame: Baseline (week 0), after nutritional education (week 10), after nutritional intervention (week 24), after follow up (week 48)
Change in vitamin and mineral status
A complete serum analyses is performed to asses vitamin and mineral status.
Time frame: Baseline (week 0), after nutritional education (week 10), after nutritional intervention (week 24), after follow up (week 48)
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